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Seals Eastern 7204 Ethylene-Propylene Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Seals Eastern, Inc
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Seals Eastern 7204 Ethylene-Propylene Rubber.pdf
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Material Notes:
Y267-Type EPDM for geothermal steam service. Ultra-Low compression set.Information provided by Seals Eastern, Inc.
Physical Properties Metric English Comments
Specific Gravity 1.121 g/cc
1.121 g/cc
ASTM D297, 15
Mechanical Properties Metric English Comments
Hardness, Shore A >= 85
>= 85
ASTM D2240, Type A
92
92
AVG; ASTM D2240, Type A
Tensile Strength at Break >= 13.1 MPa
>= 1900 psi
ASTM D412 Method A
15.29 MPa
2218 psi
AVG; ASTM D412 Method A
Tensile Strength, Yield 8.322 MPa
1207 psi
Stress at Elongation M25; ASTM D412 Method A
11.85 MPa
1719 psi
Stress at Elongation M50; ASTM D412 Method A
13.80 MPa
2001 psi
Stress at Elongation M100; ASTM D412 Method A
Elongation at Break >= 80 %
>= 80 %
ASTM D412 Method A
85 %
85 %
AVG; ASTM D412 Method A
Modulus of Elasticity 0.02974 GPa
4.314 ksi
ASTM D412 Method A
Shear Modulus 0.009915 GPa
1.438 ksi
ASTM D412 Method A
Secant Modulus 0.02797 GPa
4.056 ksi
ASTM D412 Method A
Tear Strength Test 146
146
(psi); ASTM D624, Die B
Compression Set 13 %

@Temperature 125 °C,
Time 252000 sec
 13 %

@Temperature 257 °F,
Time 70.0 hour
 ASTM D395, Test B
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 191 °C
375 °F
ASTM D1329
Glass Transition Temp, Tg -51.1 °C
-60.0 °F
ASTM D1329
Descriptive Properties Value Comments
Strain Energy / Unit Volume at 20% Elongation (psi) 119
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